Routing switching method and system

Abstract

The invention relates to a route switching method. When a mobile node switches among access routers, it comprises: a second access router transmits context transmission information to a third access router; the third access router updates a destination terminal cache list and source terminal cache list according to the context transmission information to transmit the context transmission information; the second access router updates cache according to the context transmission information and the destination terminal cache list of the first access router. The invention further relates to multiple route switching methods and route switching systems. Based on the context transmission protocol, the invention enables that the access router transmits the address information of the mobile node relative to conversation connection directly through the context transmission information in the switching process, and no new access router is needed to inquiry the flow of the route manager, thereby reducing delay caused by inquiring route manager, and reducing the possibility of losing message.

Description

technical field [0001] The present invention relates to Internet Protocol (Internet Protocol, referred to as IP) mobility technology, in particular to a method for optimizing a switching process based on a network, and a routing switching system. Background technique [0002] Nowadays, IP mobility has become a research hotspot. The so-called IP mobility refers to maintaining the continuity of existing sessions during the movement process, that is, the mobile node can change its connection point in the Internet without changing the IP address, so it is convenient The mobile node uses the home address of the mobile node to communicate with the corresponding node. There are many existing IP mobility solutions, and there are also many classification methods. Classified by whether the terminal participates in the mobility management process, it includes two management methods: terminal-based mobility management and network-based mobility management. The so-called terminal-based ...

AI Technical Summary

Problems solved by technology

[0018] The first purpose of the embodiments of the present invention is to propose a routing switching method for the defect that packets may be lost in the switching process of the existing access router, which is applicable to the terminal-based mobility management solution and can reduce the switching process of the access router. delay, so as to avoid the loss of data packets

[0019] The second purpose of the embodiment of the present invention is to propose a routing switching method for the defect that packets may be lost in the switching process of the existing access router, which is suitable for network-based mobility management solutions and can reduce the switching process of the access router. delay, so as to avoid the loss of data packets

[0020] The third purpose of the embodiments of the present invention is to propose a routing switching system for the defect that packets may be lost in the switching process of the existing access router, which is applicable to the terminal-based mobility management solution and can reduce the switching process of the access router. delay, so as to avoid the loss of data packets

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